Source : Webster's Revised Unabridged Dictionary (1913)

Iceman \Ice"man\, n.; pl. {Icemen}.
   1. A man who is skilled in traveling upon ice, as among
      glaciers.

   2. One who deals in ice; one who retails or delivers ice.

Source : WordNet®

iceman
     n 1: someone who cuts and delivers ice
     2: a professional killer [syn: {hatchet man}]